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Dhenki is traditionally made of wood and some iron. Carpenters build most parts of it where a blacksmith would attach an iron ring to the tip of the lever. A dheki consists of a heavy wooden lever, usually about 72 in (1.8 m) long, supported on a pedestal about 18 in (46 cm) high, which provides a fulcrum. [4]
A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ropes or chains, and sheaves for lifting and relocating heavy objects within the swing of its boom.
Ordnance crest "WHAT'S IN A NAME" - military education about SNL. This is a historic (index) list of United States Army weapons and materiel, by their Standard Nomenclature List (SNL) group and individual designations — an alpha-numeric nomenclature system used in the United States Army Ordnance Corps Supply Catalogues used from about 1930 to about 1958.
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
A treadwheel crane (Latin: magna rota) is a wooden, human powered hoisting and lowering device. It was primarily used during the Roman period and the Middle Ages in the building of castles and cathedrals. The often heavy charge is lifted as the individual inside the treadwheel crane walks.
Stone Age stone mortar and pestle, Kebaran culture, 22000–18000 BC Rock mortars in Raqefet Cave, Israel, used for making beer during the Stone Age Mortars and pestles were invented in the Stone Age when humans found that processing food and various other materials by grinding and crushing into smaller particles allowed for improved use and various advantages.
A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames. A trestle (sometimes tressel) is a rigid frame used as a support, historically a tripod used to support a stool or a pair of isosceles triangles joined at their apices by a plank or beam such as the support structure for a trestle table.
In order to address the Italian Army's lack of long range heavy artillery surplus 203/45, 254B, 254/40, 305/17, 305/40, and 305/46 Naval Guns were converted to land use. [ 4 ] These guns were mounted on De Stefano carriages for land use and the resulting guns were classified by their size in millimeters 203, their length in calibers 45 and ...
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